383 results found
    1. Chromosomes and Gene Expression

    The nucleosome DNA entry-exit site is important for transcription termination and prevention of pervasive transcription

    A Elizabeth Hildreth, Mitchell A Ellison ... Karen M Arndt
    Disruption of the nucleosome DNA entry-exit site causes readthrough transcription of terminators, decreased nucleosome occupancy, and pervasive noncoding transcription, demonstrating this nucleosomal region protects the genome against inappropriate transcription.
    1. Biochemistry and Chemical Biology

    Stepwise nucleosome translocation by RSC remodeling complexes

    Bryan T Harada, William L Hwang ... Xiaowei Zhuang
    Single molecule FRET reveals that the SWI/SNF-family remodeling enzyme RSC translocates nucleosomes along the DNA in steps of ~1-2 base pairs in size.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Nucleosome breathing and remodeling constrain CRISPR-Cas9 function

    R Stefan Isaac, Fuguo Jiang ... Ricardo Almeida
    The inhibitory influence of nucleosomes on CRISPR-Cas9 is mitigated by nucleosomal DNA breathing and chromatin remodeling.
    1. Chromosomes and Gene Expression

    Asymmetry between the two acidic patches dictates the direction of nucleosome sliding by the ISWI chromatin remodeler

    Robert F Levendosky, Gregory D Bowman
    Unlike Chd1, ISWI remodelers preferentially shift asymmetric nucleosomes toward the side possessing a wild type acidic patch, regardless of DNA lengths flanking the nucleosome.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Nucleosome-CHD4 chromatin remodeler structure maps human disease mutations

    Lucas Farnung, Moritz Ochmann, Patrick Cramer
    The structure of the chromatin remodeller CHD4 bound to a nucleosome reveals differences to the known Chd1-nucleosome complex and maps cancer mutations.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Cyclin D activates the Rb tumor suppressor by mono-phosphorylation

    Anil M Narasimha, Manuel Kaulich ... Steven F Dowdy
    The retinoblastoma tumor suppressor regulates cell cycle progression when it's in 14 mono-phosphorylated isoforms.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    A Brownian ratchet model for DNA loop extrusion by the cohesin complex

    Torahiko L Higashi, Georgii Pobegalov ... Frank Uhlmann
    A structure-based model of the chromosomal cohesin complex, accompanied by molecular-mechanistic simulations, explains cohesin's key role in topologically entrapping DNA, as well as its ability to alternatively extrude DNA loops.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Structure of the chromatin remodelling enzyme Chd1 bound to a ubiquitinylated nucleosome

    Ramasubramanian Sundaramoorthy, Amanda L Hughes ... Tom Owen-Hughes
    The unwrapping two turns of DNA on Chd1-bound nucleosomes cause the histone H3 tail and ubiquitin to be re-positioned.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Aurkb/PP1-mediated resetting of Oct4 during the cell cycle determines the identity of embryonic stem cells

    Jihoon Shin, Tae Wan Kim ... Hong-Duk Youn
    The regulation of the core transcription factor Oct4 by the Aurkb-PP1 axis links the cell cycle to pluripotency programs in embryonic stem cells.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Communication between distinct subunit interfaces of the cohesin complex promotes its topological entrapment of DNA

    Vincent Guacci, Fiona Chatterjee ... Douglas E Koshland
    The interface formed where Smc3p and Mcd1p bind each other regulates cohesin DNA binding and cohesion by a mechanism independently from its putative role as a DNA exit gate.

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